HDLC (High-level Data Link Control) exists as a group of protocols or rules for transmitting data between network points (sometimes called nodes).
HDLC (High-level Data Link Control) exists as a group of protocols or rules for transmitting data between network points (sometimes called nodes). In more technical terms, HDLC stands for a bit-oriented, synchronous data link layer protocol developed by the International Organization for Standardization (ISO).
The HDLC protocol exists as a general definition protocol that operates at the data link layer of the OSI reference model. The protocol utilizes the services of a physical layer and provides either the best measure or reliable communications path between the transmitter and receiver (i.e. with acknowledged data transfer).
The Cisco version of HDLC exists indeed cisco proprietary and won't run with any other vendors. There stand other vendors out there that supports HDLC, but you won't be capable to run them towards a Cisco device.
To learn more about ISO version of HDLC refer to:
https://brainly.com/question/13303900
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